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《Journal of Anhui Agricultural University》 2006-01
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Biodiversity variation of fishery community in Anqing section of the Yangtze River before and after the spring closed season

XU Dong-po,ZHANG Min-ying,LIU Kai,SHI Wei-gang(Freshwater Fisheries Research Center,Chinese Academy of Fishery Sciences,Wuxi 214081)  
The fish,shrimps and crabs captured in Anqing section of the Yangtze River downstream covered 7 orders,13 families and 41 species between April to June from 1999 and 2004.During 1999 to 2001 before the spring close in the Yangtze River,the average indices indicating biodiversity were such that Shannon-Wiener index was 1.91,Margalef′s index was 0.76,Pielou′s index was 0.81 and McNaughton′s index was 0.53.From 2002 to 2004 after the spring close,the Shannon-Wiener index was 2.42,Margalef′s index was 1.38,Pielou′s index was 0.79 and McNaughton′s index was 0.36,respectively.The result showed that more complicated fishery community structure and recover of biodiversity in Anqing zone after the spring close season was adopted.
【Fund】: WWF基金(2001-001-A);; 长江渔业资源管理委员会基金(2001-38)资助
【CateGory Index】: S932
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